# Knowfeed vs Lyra

The clearest difference is in-app purchases: Knowfeed at none against Lyra's 2. Lyra's advantage is update cadence (weekly vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Lyra sells 2 in-app purchases, starting at $9.99 per month. Knowfeed asks for nothing beyond the download.

Knowfeed ships an update monthly, Lyra weekly. The most recent releases landed on September 14, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Knowfeed | Lyra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/lyra-learn-something-new/id6781001515/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | — | Freemium |
| Size | 31 MB | 62 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Jonas Fancony](https://appshunter.io/developer/1896501927) | [Revent Solutions LLC](https://appshunter.io/developer/1735347556) |

## What reviewers say

### Knowfeed

[App page](https://appshunter.io/ios/app/knowfeed/id6770065298)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Lyra

[App page](https://appshunter.io/ios/app/lyra-learn-something-new/id6781001515)

Discover a new fascinating topic daily through interactive lessons. Ask questions to deepen understanding and build a visual knowledge map connecting diverse ideas. Turn idle moments into continuous learning and intellectual growth.

**Highlights:** Daily surprising topics, Interactive lessons, Ask follow-up questions, Visual second brain knowledge map, Connect ideas across subjects, Personalized subject guidance, Track learning growth and streaks

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lyra Monthly | $9.99 | per month |
| Lyra Yearly | $64.99 | per year |


## Frequently asked questions

### Is Knowfeed free?

Knowfeed is free to download, with no in-app purchases.

### Is Lyra free?

Lyra is free to download, with in-app purchases available.

### Do Knowfeed or Lyra have ads?

Neither Knowfeed nor Lyra shows ads.

### Which is updated more often, Knowfeed or Lyra?

Knowfeed ships an update monthly, and Lyra weekly. Most recently, Knowfeed was updated on September 14, 2026 and Lyra on September 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*